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我国８０年代从波兰引进的Ｐｉｏｍａ液压支架，由于其适宜于 倾斜、缓倾斜中厚煤层综采工作面，还能进行铺网作业进行分层开采，至今仍在使用。但随着设备老化，使用过程中也出现了一些局部结构的频繁破坏，又加之维修所需液压元件需要进口，为此集团公司决定对该支架进行改造
The Pioma hydraulic support introduced from Poland in 1980s in our country is still used because of its suitability for fully mechanized coal mining face with inclined and gently inclined medium thick seam, as well as layered operation for laying operation. However, with the aging of the equipment, some frequent breakdown of local structures also occurred during the use of the equipment. In addition, the hydraulic components required for maintenance were imported. Therefore, the Group Company decided to rebuild the bracket